Effects of the COVID-19 pandemic on routine pediatric vaccination in Brazil

Abstract

BACKGROUND: COVID-19 pandemic has disrupted health services, including vaccination demand. We describe the impact of the COVID-19 pandemic on routine pediatric vaccination in Brazil. METHODS: We conducted a retrospective analysis of all vaccine doses provided to children aged 0-6 years from January 2019 to December 2020. We obtained data stratified by age group (0 to 2 years and >2 to 6 years) and Brazilian region. Difference-in-difference (DiD) analyses were performed to compare vaccine uptake in the pre-pandemic (January-February), stay-at-home (March-June), and reopening (July-December) periods. RESULTS: The number of vaccine doses administered declined in the stay-at-home period. For children aged 0 to 2 years, the highest reductions were recorded in the North (-25.3%), Northeast (-16.8%) and Central-West (-10.2%) regions. For children aged >2 to 6 years, the highest decline was observed in the North (DiD = -27.2%) and South (DiD = -14.0%) regions. The number of vaccine doses administered in the reopening period has slightly increased in all regions. CONCLUSIONS: Vaccination decreased during the COVID-19 pandemic. Although the number of doses recovered in part during the reopening phase, additional strategies, such as increased public awareness and vaccination booster campaigns are required.

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